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Merck

295450

Sigma-Aldrich

2-Methylpropane

99%

Sinónimos:

Isobutane

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About This Item

Fórmula lineal:
(CH3)3CH
Número de CAS:
Peso molecular:
58.12
Beilstein:
1730720
Número CE:
Número MDL:
Código UNSPSC:
12142100
ID de la sustancia en PubChem:
NACRES:
NA.22
Ensayo:
99%
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densidad de vapor

2.01 (21 °C, vs air)

Nivel de calidad

presión de vapor

72.2 psi ( 37.7 °C)

Ensayo

99%

temp. de autoignición

860 °F

lim. expl.

8.3 %

bp

−12 °C (lit.)

mp

−160 °C (lit.)

densidad

2.064 g/mL at 25 °C (lit.)

cadena SMILES

CC(C)C

InChI

1S/C4H10/c1-4(2)3/h4H,1-3H3

Clave InChI

NNPPMTNAJDCUHE-UHFFFAOYSA-N

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Aplicación

2-Methylpropane can be used as a starting material to prepare:
  • Isobutylene by catalytic dehydrogenation using various catalysts.[1]
  • Isopropyl methyl ketone by formylation reaction with carbon monoxide in the presence of super acid catalyst.[2]
  • tert-Butylhydroperoxide (TBHP) by oxidation.[3]

Envase

Supplied in a Sure/Pac cylinder and has a brass needle valve with a male 1/4" NPTF outlet thread installed. Before using the cylinder, ensure that the valve is closed, then remove the galvanized steel hex cap that seals the outlet valve.

Compatible with the following:

Información legal

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC
Sure/Pac is a trademark of Sigma-Aldrich Co. LLC

Opcional

Referencia del producto
Descripción
Precios

espiga

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regulador

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también adquirido normalmente con este producto

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Pictogramas

FlameGas cylinder

Palabra de señalización

Danger

Frases de peligro

Clasificaciones de peligro

Flam. Gas 1A - Press. Gas Liquefied gas

Código de clase de almacenamiento

2A - Gases

Clase de riesgo para el agua (WGK)

nwg

Punto de inflamabilidad (°F)

-117.4 °F - closed cup

Punto de inflamabilidad (°C)

-83 °C - closed cup

Equipo de protección personal

Eyeshields, Faceshields, Gloves, multi-purpose combination respirator cartridge (US)


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Certificados de análisis (COA)

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Visite la Librería de documentos

Effect of catalyst prereduction on the dehydrogenation of isobutane over chromia/alumina
Airaksinen S MK and Krause A OI
Industrial & Engineering Chemistry Research, 44(11), 3862-3868 (2005)
Superacid-Catalyzed Selective Formylation-Rearrangement of Isoalkanes with Carbon Monoxide to Branched Ketones
Olah GA, et al.
Angewandte Chemie (International ed. in English), 112(14), 2647-2648 (2000)
The production and use of butadiene and isobutylene
Petroleum Chemistry (Neftekhimiya), 112(14), 84-84 (2015)
Laure Pison et al.
Physical chemistry chemical physics : PCCP, 17(45), 30328-30342 (2015-10-29)
The solubility of n-butane and 2-methylpropane (isobutane) in three ionic liquids - 1-(2-methylpropyl)-3-methylimidazolium bis(trifluoromethylsulfonyl)imide [(2mC3)C1im][Ntf2], 1-(3-methylbutyl)-3-methylimidazolium bis(trifluoromethylsulfonyl)imide [(3mC4)C1im][Ntf2] and 1-methyl-3-pentylimidazolium bis(trifluoromethylsulfonyl)imide [C5C1im][Ntf2] - has been measured at atmospheric pressure from 303 to 343 K. Isobutane is less soluble than n-butane
Vera Lepperhof et al.
PloS one, 9(9), e107363-e107363 (2014-09-17)
Cell loss after transplantation is a major limitation for cell replacement approaches in regenerative medicine. To assess the survival kinetics of induced pluripotent stem cell (iPSC)-derived cardiomyocytes (CM) we generated transgenic murine iPSC lines which, in addition to CM-specific expression

Preguntas

1–2 de 2 Preguntas  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 respuesta
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 respuesta
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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